Which book changed the way you think, and what did it change?

C. S. Lewis - his works were very, very important during my time there. We had discussion groups. I did become more attracted to it although I still attended the Methodist church. If you read Lewis. Then until this day, he did the lectures, something like christian behaviour and 'the screwtape letters', and we were all discussing them. I thought some of his work was the most illuminating to people reaching out to christianity because you're always questioning particularly at that age and you're looking for reassurance and for answers. Indeed you go on questioning throughout your life.

Very much so. I went to synagogue regularly. My first education was interpreting the Bible. But I also grew up with German folk songs and stories, which became as much a part of my imagination as the Bible stories. My sense of history came from these stories—I was fascinated with what you might call fairy-tale-shaped history. But from the beginning I felt I belonged to a different people, which wasn’t any problem for me. I made the German landscape, which was very beautiful to me—flowing rivers, mountains, forests, lakes—into a biblical landscape. The valley of sunshine into which we went on school excursions in my imagination became the valley in which David and Goliath fought.

The first biography I read — I think the first scientific biography — was Madame Curie . And my mother, who was a surgeon, worked at the Marie Curie Hospital. She’d met Marie Curie, who was one of her great heroines. And reading the book, I think, was the first portrait of a scientist and the romance of a scientific life.

I think fiction is very important because it gets us into the mind of a person. Hamlet is a tremendous piece of literature. You know Hamlet better than you know most real people. Do you know the reason? Because you know what he’s thinking. And this teaches you that every human has an integrity and an autonomy and a spirituality of his own, of her own, and great literature can teach you that.

I think of another book that I read – what was it called? – Night Train to Lisbon. I wouldn’t say it’s in that same category, but sometimes there was just a line in a book that changed my life in some way, and it came at a critical juncture. The line was, “Given that there is so much in all of us, what happens to the rest?”